/*
 *  Copyright 2008 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.codegen.ibatis2.sqlmap.elements;

import static org.mybatis.generator.internal.util.StringUtility.stringHasValue;

import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;

/**
 * 
 * @author Jeff Butler
 * 
 */
public class SelectByExampleWithBLOBsElementGenerator extends AbstractXmlElementGenerator {

	public SelectByExampleWithBLOBsElementGenerator() {
		super();
	}

	@Override
	public void addElements(XmlElement parentElement) {
		XmlElement answer = new XmlElement("select"); //$NON-NLS-1$
		answer.addAttribute(new Attribute("id", introspectedTable.getSelectByExampleWithBLOBsStatementId())); //$NON-NLS-1$
		answer.addAttribute(new Attribute("resultMap", introspectedTable.getResultMapWithBLOBsId())); //$NON-NLS-1$
		answer.addAttribute(new Attribute("parameterClass", introspectedTable.getExampleType())); //$NON-NLS-1$

		context.getCommentGenerator().addComment(answer);

		answer.addElement(new TextElement("select")); //$NON-NLS-1$
		XmlElement isParameterPresent = new XmlElement("isParameterPresent"); //$NON-NLS-1$
		XmlElement isEqualElement = new XmlElement("isEqual"); //$NON-NLS-1$
		isEqualElement.addAttribute(new Attribute("property", "distinct")); //$NON-NLS-1$ //$NON-NLS-2$
		isEqualElement.addAttribute(new Attribute("compareValue", "true")); //$NON-NLS-1$ //$NON-NLS-2$
		isEqualElement.addElement(new TextElement("distinct")); //$NON-NLS-1$
		isParameterPresent.addElement(isEqualElement);
		answer.addElement(isParameterPresent);

		StringBuilder sb = new StringBuilder();
		if (stringHasValue(introspectedTable.getSelectByExampleQueryId())) {
			sb.append('\'');
			sb.append(introspectedTable.getSelectByExampleQueryId());
			sb.append("' as QUERYID,"); //$NON-NLS-1$
			answer.addElement(new TextElement(sb.toString()));
		}

		answer.addElement(getBaseColumnListElement());
		answer.addElement(new TextElement(",")); //$NON-NLS-1$
		answer.addElement(getBlobColumnListElement());

		sb.setLength(0);
		sb.append("from "); //$NON-NLS-1$
		sb.append(introspectedTable.getAliasedFullyQualifiedTableNameAtRuntime());
		answer.addElement(new TextElement(sb.toString()));

		XmlElement isParameterPresenteElement = new XmlElement("isParameterPresent"); //$NON-NLS-1$
		answer.addElement(isParameterPresenteElement);

		XmlElement includeElement = new XmlElement("include"); //$NON-NLS-1$
		includeElement.addAttribute(new Attribute("refid", //$NON-NLS-1$
				introspectedTable.getIbatis2SqlMapNamespace() + "." + introspectedTable.getExampleWhereClauseId())); //$NON-NLS-1$
		isParameterPresenteElement.addElement(includeElement);

		XmlElement isNotNullElement = new XmlElement("isNotNull"); //$NON-NLS-1$
		isNotNullElement.addAttribute(new Attribute("property", "orderByClause")); //$NON-NLS-1$ //$NON-NLS-2$
		isNotNullElement.addElement(new TextElement("order by $orderByClause$")); //$NON-NLS-1$
		isParameterPresenteElement.addElement(isNotNullElement);

		if (context.getPlugins().sqlMapSelectByExampleWithBLOBsElementGenerated(answer, introspectedTable)) {
			parentElement.addElement(answer);
		}
	}
}
